I think the ending means he is going to go RIGHT.BACK.to the way he was before. "Oh, yes....I was cured." lol ya know? He was cured, and he was definitely going to use that to his advantage. He didn't like how he was after the treatment, and did you SEE his grin when he realized he was cured?

The only thing I found to be really disturbing in the Orange universe or whatever is that you know how he picks up those two girls in the record store? Well, in the book, it was 2 ten year old girls.....and he didn't pick them up...........he was raping them, very...ummm....vigorously.....

its fucked up....